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| mardim | bcafarel, hello how are you | 09:09 |
|---|---|---|
| mardim | ? | 09:09 |
| mardim | bcafarel, I have one question | 09:09 |
| mardim | I creates a chain | 09:10 |
| mardim | created* | 09:10 |
| mardim | and the traffic goes trough the chain | 09:10 |
| mardim | but never reaces the server | 09:10 |
| mardim | reaches | 09:10 |
| mardim | is a nosdn deployment | 09:10 |
| mardim | are you aware of this ? | 09:10 |
| bcafarel | mardim: o/ so you see traffic through the SF ports fine, but not on the end server? | 09:28 |
| bcafarel | I don't think I have seen this behavior | 09:28 |
| mardim | Yes exactly | 09:29 |
| mardim | the traffic ingress the service function but I think never egress | 09:29 |
| mardim | should the SF be aware of MPLS ? | 09:29 |
| mardim | I mean should the SF encapsulate the packet with MPLS header again ? | 09:30 |
| mardim | bcafarel, ^ | 09:31 |
| bcafarel | mardim: depends on the correlation parameter, if None we strip (and later re-add) MPLS | 09:32 |
| bcafarel | that's still the default I think | 09:32 |
| bcafarel | (correlation on the port pair group, not the chain one) | 09:32 |
| mardim | ok let me check | 09:32 |
| bcafarel | mardim: my old demo script https://github.com/voyageur/openstack-scripts/blob/master/simple_sfc_vms.sh mostly default parameters and packets got to the dest VM fine | 09:35 |
| mardim | bcafarel, Ahhh thanks | 09:40 |
| mardim | bcafarel, I think the problem is that the SF doesn't egreess | 09:40 |
| mardim | the packet form te same interface | 09:40 |
| mardim | Do you know how to do that | 09:40 |
| mardim | ? | 09:40 |
| bcafarel | mardim: ah that's a test VM too? I just run some "ip route" commands | 09:58 |
| mardim | bcafarel, Yes I am trying to create a demo for OPenstack summit | 09:59 |
| mardim | Do you know how I instruct the VM to egress the traffic from the same interface that was ingress | 09:59 |
| mardim | ? | 09:59 |
| bcafarel | I guess it's not the same network as source/dest then? (else the routing would be correct already) | 10:00 |
| mardim | is the same network | 10:00 |
| mardim | but by default you cannot egress a packet from the ingress interface | 10:00 |
| mardim | I think the VM just get the packet and then it drops it because the dest ip | 10:01 |
| mardim | is not its ip | 10:01 |
| bcafarel | mardim: ip_forward enabled on the SF? also remember to disable port security | 10:02 |
| mardim | bcafarel, How I enable ip_forward ? | 10:03 |
| mardim | do I * | 10:03 |
| bcafarel | I used cirros so it was just sudo sh -c 'echo 1 > /proc/sys/net/ipv4/ip_forward' (not permanent but enough for demo) | 10:03 |
| mardim | bcafarel, Ah ok let me try | 10:04 |
| bcafarel | https://github.com/voyageur/openstack-scripts/blob/master/simple_sfc_vms.sh#L95 | 10:04 |
| bcafarel | these are the only steps I had (basic VM but it did its job) | 10:04 |
| mardim | bcafarel, ok I will try replicate your demo | 10:04 |
| mardim | bcafarel, Thanks a lot for the help :) | 10:04 |
| bcafarel | np, hopefully it still works ;) | 10:05 |
| mardim | it will I am sure about that :) | 10:07 |
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| geb | hi folks | 17:18 |
| geb | I tested https://github.com/openstack/kolla-ansible/blob/master/contrib/demos/tacker/deploy-tacker-demo-sfc again on pike, it works fine (just had to fetch an older version of this demo because of tosca format change), but still have the same issue in queens https://pastebin.com/cU68yPMV (L148) & https://pastebin.com/bGqXxYJ6 (end), both installed with kolla | 17:20 |
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